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Weed seed-germination .3. bidens-pilosa L
(Inst Tecnologia Parana, 1993-06-01)
The germination of seeds of Bidens pilosa L. colected at different places was analyzed by dose-response curves for induction and reversion of germination in seeds pre-incubated at 25 degrees C or 36 degrees C during 24 ...
Effect of five substrates and three seed types on Calendula officinalis (Asteraceae) germination and seedling development
(1999-12-01)
The investigation was carried out during May - June 1996 in Agronomical Sciences College - UNESP, Campus de Botucatu. The objective was to study the effect of seed types (carenate, alate and orbicular) and different ...
Study of seed-germination and etiolation of seedlings in Emilia-sonchifolia (l) dc and Emilia-fosgerbii nicolson (Asteraceae)
(Inst Tecnologia Parana, 1995-06-01)
The germination of seeds of Emilia sonchifolia (2n) and E. fosgerbii (4n) was analysed and our results indicate that the former present light insensitive seeds and the latter germinated only under continuous white light. ...
PHYTOCHROME CONTROLLED SEED-GERMINATION IN LIGHT INSENSITIVE SEEDS OF RAPHANUS-SATIVUS L CV REDONDO GIGANTE
(Inst Tecnologia Parana, 1992-01-01)
Seed germination of Raphanus sativus is inhibited by light only under low water potential of the medium. Curves of fluence response to white, red and far-red lights demonstrated that the inhibition of seed germination is ...
Phytochrome and temperature control of seed germination in Muntingia calabura L. (Elaeocarpaceae)
(Inst Tecnologia Parana, 2001-01-01)
The temperature range of germination of seeds of Muntingia calabura L. was 15-35 degreesC and the optimum temperature at 35 degrees where more seeds germinated at short period. The fluence response curves demonstrated the ...
Effect of five substrates and three seed types on Calendula officinalis (Asteraceae) germination and seedling development
(1999-12-01)
The investigation was carried out during May - June 1996 in Agronomical Sciences College - UNESP, Campus de Botucatu. The objective was to study the effect of seed types (carenate, alate and orbicular) and different ...
Weed seed-germination .3. bidens-pilosa L
(Inst Tecnologia Parana, 1993-06-01)
The germination of seeds of Bidens pilosa L. colected at different places was analyzed by dose-response curves for induction and reversion of germination in seeds pre-incubated at 25 degrees C or 36 degrees C during 24 ...
Effect of saline solutions and salt stress on seed germination of some tropical forest tree species
(Universidad de Costa Rica, 1998)